SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES New Accounting Pronouncements Adopted (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net	$ 19,580	$ 21,582
Operating Lease, Right-of-Use Asset	29,747	0
Accrued expenses and other current liabilities	36,759	37,547
Operating Lease, Liability, Noncurrent	28,127	0
Other long-term liabilities	$ 5,646	10,302
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net		256
Operating Lease, Right-of-Use Asset		37,749
Accrued expenses and other current liabilities		6,957
Operating Lease, Liability, Noncurrent		35,694
Other long-term liabilities		(4,646)
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net		21,838
Operating Lease, Right-of-Use Asset		37,749
Accrued expenses and other current liabilities		44,504
Operating Lease, Liability, Noncurrent		35,694
Other long-term liabilities		5,656
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net		21,582
Operating Lease, Right-of-Use Asset		0
Accrued expenses and other current liabilities		37,547
Operating Lease, Liability, Noncurrent		0
Other long-term liabilities		$ 10,302